The e_menu v3.4.8 provides a menu system bound to an editing / file managing session. A text editor / file manager with plugin / context features allows to use e_menu as "a plugin of plugins" that raises a whole environment of commands & menus around it.
By now e_menu is implemented for:
The e_menu can be a "mega-widget" called from Tcl/Tk code as a modal / independent / dock / desktop window.
Three executables allow to run e_menu on Linux 64 and Windows 32/64 without Tcl/Tk installed. Somewhat exotic for Tclers, though.